We have a problem with MVA when the user call from outside hear the MVA prompt with no problem enter his extension and pin with no problem when trying to call any destination number the call disconnected immediately I follow the configuration guide we have checked CSS and Partation I am doubting it is a codec Issue .........Any I dea how to troubleshoot it.
Personally, I would set the CM trace to Detailed and run a test call. Then I would pull that trace down and look specifically for Media resource allocation errors (if your codec mismatch theory is accurate) and the digit analysis (to ensure that the CSS you think should be used is actually used).
Do calls fail no matter what directory number is called? (i.e. what happens for MVA-to-IPPhone vs. MVA-to-2ndStageDial)
I'd also check the CM service parameters under the section (System-Mobility) to ensure things line up.
Sorry, not much help I know. But I would start troubleshooting by checking configs and pulling the CM trace.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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